Improvement in damper-regulators



2Sheets-Sheet 1. W. E. KELLY. Damper-Regulator.

No. 217,879. Patented July 29,1879.

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In Luyn 2 Sheets-Sheet 2. W. E. KELLY.

Damper-Regulator.

Patented July 29,1879.

N.FETF.RS, PHOTO-LITHOGRAFHER, WASHINGTON D c UNITED STATES PATENTOEEIGE.

IILIIIAM E. KELLY, OF NEW BRUNSWICK, NEW JERSEY.

IMPROVEMENT IN DAM PER-REGULATORS.

Specification forming part of Letters Patent No. 217,879., dated July29, 1879; application filed February 27, 1879.

To all whom t may concern:

Be it known that I, WILLIAM E. KELLY, of New Brunswick, in the county ofMiddlesex and State of New Jersey, have invented certain new and usefulImprovements in Damper- Regulators, of which the following is aspecification.

My invention consists, principally, in the combination, for use with asteam-generator and a damper therefor, of a lever adapted to beconnected with such damper and two motors acting in different directions011 such lever, and arranged on opposite sides' of an intermediatepartition or platform cccentrieallyto each other, whereby I produce asimple and compact apparatus, wherein each motor is operated independently of the other, so as to impart a double movement to the saidlever.

The invention also consists in various combinations of parts anddevices, hereinafter described and claimed.

In the accompanying drawings, Figure l represents a side view of anapparatus embodying my invention. Fig. 2 represents a plan thereof. Fig.3 represents a central longitudinal section of the same. transversesection thereof. Fig. 5 represents a side view of an apparatus ofslightly modied form embodying my invention. Fig. 6 is aplan thereof.FiO'. 7 is a central longitudinal section thereof.

Similar letters of reference designate corresponding parts in all thefigures.

Referring h'rst to Figs. 1, 2, 3, and 4, A Al designate two motors,shown as consisting of circular chambers A, arranged eccentrically onopposite sides. of a platform, B, and furnished with diaphragms A', ofmetal, leather, canvas, and india-rubber or other flexible material,secured in place by clampingrings C.

The platform B may be erected on legs a, and the clamping-rings maybeelongated, so as to be ellipsoidal, in order that each shall overlap thechamber to which the other is fitted, and both may be secured in placeby the ame bolts passing through them and the platorm.

Both the chambers A communicate with, so as to receive steam from, asteam-generator, in this instance, by a single port or passage, b, inthe platform B and branch ports or passages c leading therefrom.

Fig. 4 represents a- Itis obvious, however, that entirely separatepassages might be employed in lieu of those described, and the chambersexcluded from each other.

D designates a lever, shown as connected directly to the upper or nearerdiaphragm A' by means of a pin or bar, E, and to the lower or mostdistant diaphragm A by means of a yoke, F, pivoted to it, and extendingtransversely across the upper diaphragm, in conjunction with links G,extending from its ends to the ends of another yoke or cross-bar, H,connected, by a pin or bar, I, to said lower diaphragm, said linksstraddling the latter.

I have shown the pin or bar E, which forms the stem of the upperdiaphragm Al and connects it to the lever D, as provided with wings dand fitting in a guide or bridge piece, K, whereby it is kept fromtilting.

The lever D is preferably connected to the pin or bar E and yoke F bymeans of knifeedge bearings, so as to admit of its easy operation.

It will be understood that upon the accumulation of a certain pressureof steam in the steam-generator and its transmission to the chambers Athe diaphragm A willA be distended in different directions, and will, byacting on the lever Din different directions at the points of theirconnection with it, impart to it a double motion while operatingentirely y independently of each other.

One diaphragm forms a movable fulcrum for the lever, and the other actson one of its arms. The lever D, in this example of my inven. tion,constitutes the means for operating on the damper of the steamgenerator,so as to open or close it to increase or decrease the draft to thefurnace of the generator and regulate the pressure of steam in thelatter, and such lever may be connected with the damper in any suitablemanner. Preferably I employ in connection with this lever D a guide, L,to prevent it from swing ing sidewise, and when I do so I mayadvantageously furnish such guide with an adjusta ble stop, such as ascrew, e, for limiting the upward motion of the lever.

A weight, M, capable of being adjusted into different positions on thelever and of beingl secured in place by a set-screw,f, serves to returnthe diaphragms A' to their normal positions upon a reduction of pressurewithin the chambers A.

In Figs. 5, 6, and 7, two chambers, A, are tted with diaphragms A', andarranged one concentrically above the other. Both are shown as above theplatform B 5 but a partition, N, is arranged between them.

The lower diaphragm is connected to a lever, O, pivoted at one end to alink or links, S, suspended from the platform B, and connected at theother by a link, T, with a lever, D, which is connected to the upperdiaphragm, as in the above-described example ot' my invention, andconstitutes the'means for operating the damper of the steam-generator.In this example one diaphragm forms a movable fulcrum for the lever D,and the other acts upon one of its arms, as in the other example ofmyinvention; but here the upper diaphragm needs to be of less act-ivearea than the lower, in order to act properly in conjunction with it. Itwill be seen that by my invention I produce a simple, exceedinglycompact, and et'- fective apparatus, whereby the pressure of steam in agenerator may be regulated through the damper.

It is obvious that my invention is not confined to regulating` pressureof steam in a generator, but that it may be employed for regulatin gpressure of gases or liquids in various ways-for instance, by subjectingthe motors to the intluence of the gases or liquids whose pressure is tobe regulated, and causing said motors to act upon the throttle-valve ofan engine. I

What I claim as my invention, and desire to secure by Letters Patent,is-

l. The combination, Afor use with a steamgenerator and a dampertherefor, of a lever adapted to be connected with such damper, and twomotors acting in different directions on said lever, and arranged onopposite sides of au intermediate partition or platform eccentrically toeach other, substantially as specitied.

2. The combination, for use with a steamlever with the other of saidmotors, substantially as specified, whereby 1 produce a very compact andefticient apparatus for operating a damper.

3. The combination, for use with a steamgenerator and a damper therefor,of a lever adapted to be connected with said damper, two motors arrangedon opposite sides of an intermediate partition or platform, a link or Ylinks extending transversely across said motor, connecting said leverwith the most distant motor, a pin or bar connecting said lever with theother of said motors, a guide for said lever, and an adjustable stop forlimiting the motion of said lever, substantially as speciiied.

4. The combination, for use with a steamgenerator and a damper therefor,of a lever l adapted to be connected with the damper, two motorsarranged on opposite sides of an interlnediate partition or platform, alink or links extending transversely across said motors, connecting saidlever with the most distant of said motors, a pin or bar connecting saidle-v ver Awith the other of said motors, and a weight applied to saidlever, substantially as specified.

5. rIhe combination, for use with a steamgenerator and a dampertherefor, of a lever, D, two motors, consisting of chambers A anddiaphragms A', arranged on opposite sides of an intermediatesupporting-plattorm, B, yoke H, links G, and yoke F, connecting thelower of said diaphragms with said lever D, and means for connecting thelupper diaphragm with said lever, substantially as specified.

WILLIAM E. KELLY.

Witnesses:

EDWIN H. BROWN, THOMAS E. BIRCH.

